What is cwdm-4-Pigtail?
cwdm-4-pigtail is a passive CWDM multiplexer that concentrates up to 4 independent data connections over a single duplex fiber. It is fully data rate and line protocol neutral.
CWDM devices increase bandwidth on existing optical fiber infrastructure and alleviate fiber exhaustion. They are also simple to install and require no configuration.
Optical Comb Filter
The optical comb filter (OFC) is a device that can generate many optical pulses with the same repetition rate. It uses a laser and a resonator to create a series of frequency-dependent phase delays. When these delays are added together, they create a line that looks like a comb shape. The OFC can be used for various applications, including fiber-optic communication systems.
The OFC is a highly efficient device that offers high spectral purity, low noise, and high OSNR. In addition, it can be scaled up to high-bandwidth applications. The OFC can also be integrated with other components, which will further reduce its cost and size.
The OFC is a powerful tool for broadband communications and enables higher BER and Q2 in optical-fiber transmission systems. Its high spectral purity and narrow linewidth enable it to support advanced modulation formats. It also has an attractive architecture that is suitable for photonic integration, which could lead to a reduction in overall system costs. The tunable FSR and low linewidth of the OFC make it an attractive option for wireless access, long-haul optical communications, and metro-area networks.
Optical Waveguide
The optical waveguide is a structure that guides light by trapping and reflecting it. Its structure allows the guided light to propagate over useful distances, thereby enabling a wide variety of applications. Optical waveguides are typically flat, rectangular or circular in shape and can be made of glass, polymers, or heterogeneous materials. The waveguide is usually surrounded by an index-matched cladding material that limits the amount of reflected or transmitted light.
The CWDM4 optical transceiver module is an active optical component that combines cwdm-4-pigtail multiplexing and demultiplexing of DWDM optical signals. It uses integrated optical technology to reduce the size and cost of the device.
The device is designed to transmit up to 4 independent data channels using CWDM wavelengths. It supports Gigabit & 10G Ethernet, SDH/SONET, ATM and ESCON and can be used over standard single-mode fiber. It has a compact form factor, allowing it to fit in tight spaces. Its scalability also makes it easy to upgrade the capacity. It is suitable for a wide range of applications in cloud computing. The CWDM4 device is available with various LC connectors, including duplex LC.
Integrated Optical Technology
CWDM modules combine or split up to 18 wavelengths into one fiber using ITU-T grid wavelengths from 1270nm to 1610nm. They are designed with high channel isolation to ensure that adjacent channels remain separate from each other. They also have high thermal stability to ensure reliable performance under different environments.
Gigalight offers a complete po folio of CWDM Mux Demux and OADM units to suit various applications including Gigabit & 10G Ethernet, SDH/SONET, ESCON, FTTH and Fibre Channel. These passive devices are fully data rate and line protocol neutral so can be used with any transceiver that supports those protocols.
The CWDM Mux/Demux – SCMD-4A is part of EDGE Optics xWDM Series products which allow easy, gradual and cost effective expansion of network bandwidth. It uses industry leading passive CWDM technology to organize 4 independent and parallel protocol-independent data connections over a single duplex optical fiber. The device is completely passive with no electronic components or power supply and requires no configuration or maintenance. It is also highly robust with no special micro-climate requirements and has a long MTBF of 100+ years.
Z-Block Technology
The Z-block is a passive multiplexer device that combines up to four independent CWDM channels for transmission over a single duplex optical fiber. It uses a standard QSFP28 package and is compatible with all protocols and data rates.
The device utilizes eight thin-film filter chips pasted on an oblique prism in two groups, with one group used for multiplexing and the other used for demultiplexing. The wavelength interval is 20nm, which provides high efficiency. The Z-block device offers lower insertion loss Network Server than other devices on the market, and its high parallelism and pitch tolerance simplify the assembly process.
To improve the performance of a DWDM network, the add/drop filters should be carefully selected. This will ensure that the target OSNR budget is met at each point SS and RS. The add/drop filters should also be able to handle different channel characteristics, such as dispersion and spectral profile. The FEC coder/decoder can be built-in directly into the CWDM transponders (such as the Menara Networks quasi-transponders) or integrated in MSA compliant SFP and XFP modules.
ITL
ITL provides information technology services to government, business and education. Its staff of professionals collaborates with NIST laboratories, industry, standards developing organizations and other national and international stakeholders to create innovative information technologies to meet national priorities. The ITL program publishes a range of information security publications, including NIST Interagency Report 7946, CVSS Implementation Guidance.
Unlike dense wavelength-division multiplexing (DWDM), which requires more complex optics and lasers, CWDM uses simpler thin-film filters and less power. These advantages help make CWDM less expensive than DWDM for short-distance applications. Moreover, the development of zero water-peak fibers has improved the scalability of CWDM networks.
The CWDM system shelf has two slots that you can install CWDM OADM or Mux/Demux plug-in modules in. The four-channel CWDM Mux/Demux module multiplexes or demultiplexes four CWDM channels (wavelengths) in a single-mode fiber-optic cable. You must connect the CWDM OADM and Mux/Demux ports to CWDM GBICs that are installed in your switching modules to ensure that the system operates correctly. You must also clean the fiber-optic connectors to avoid contamination and damage.
